Hex key set BAHCO 7-piece 3–12 mm metric L-keys

BAHCO 7-piece 3–12 mm metric L-keys set contains seven hex keys sized 3, 4, 5, 6, 7, 8 and 10–12 mm in a compact holder. The set is designed for common hex fasteners used in assembly, maintenance and repair tasks. Each L-key provides a straight shank and an offset arm to deliver reliable torque transfer and access to recessed screws. The compact arrangement keeps tools organized for a workshop drawer or mobile toolkit.

Advantages

The BAHCO L-keys are made from hardened steel to resist wear and preserve hex profiles under repeated use. The L-shape allows both high-torque operation using the long arm and precise control with the short arm. A molded holder secures the keys and enables quick selection of the required size, while the metric range covers the most common fasteners in bicycles, furniture, machinery and technical equipment.

Suitable for

• Assembly and disassembly of bicycles and scooters
• Furniture assembly and adjustment
• Routine maintenance of machinery and equipment
• Mobile repair kits and field service toolboxes

Key specifications

• Set composition: 7 L-keys
• Metric sizes included: 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 12 mm
• Tool shape: L-key (hex/Allen key)
• Material: hardened steel (heat-treated for durability)
• Finish: wear-resistant surface treatment
• Storage: compact molded holder for organization

How to use

Select the hex key that fits the fastener snugly to avoid rounding the corners. Insert the short or long arm into the screw head according to the required torque and reach: use the long arm for increased leverage and the short arm for tight spaces or finer control. Apply steady, even force to turn the fastener; do not use excessive impact force. After use, return keys to the holder to prevent loss and keep the set accessible for future tasks.

Usage recommendations

For best results, inspect key tips and fastener recesses for damage before applying high torque. Keep the keys clean and lightly oiled to prevent corrosion. If a fastener is rounded or damaged, avoid forcing the key to prevent further wear; use appropriate extractor tools or replace the fastener.